2.BORDER SECURITY FORCE (BSF) STRENGTH : 240,000 personnels in 186 Battalions MORE : The primary role of BSF is to guard the land borders of the country, except in the mountains. It is headed by an Indian Police Service Officer.

3.INDO-TEBATAN BORDER POLICE (ITBP) STRENGTH : 77,000 personnel in 55 BattalionsMORE : The ITBP is deployed for guarding duties on the border with China from Karakoram Pass in Ladakh to Diphu La in Arunachal Pradesh covering a total distance of 2488 km.

5.CENTRAL INDUSTRIAL SECURITY FORCE (CISF)STRENGTH : 112,000 personnels in 132 Battalions MORE: One of the largest industrial security forces in the world, CISF provides security to various PSUs and other critical infrastructure installations across the country.

6.RAILWAY PROTECTION FORCE (RPF) STRENGTH :MORE : Established under the RPF Act 1957, RPF is charged with providing security for the Indian Railways.

7.NATIONAL SECURITY GUARDS (NSG)STRENGTH : 8636 personnel MORE : The NSG is an elite counter terrorist and rapid response force. The NSG's roles include conducting anti-sabotage checks, rescuing hostages, neutralizing terrorist threats to vital installations, engaging terrorists, responding to hijacking and piracy and protecting VIPs. The NSG also includes the Special Ranger Group (SRG), whose 3,000 personnel provide protection to India's political leadership.